Drum.



No. 673,633. Patented m '7, lam; E. BOULANGEB.

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UNITED STATES PATENT OFFICE.

EMILE BOULANGER, OF ST. LOUIS, MISSOURI.

DRUM.

SPECIFICATION forming part of Letters Patent No. 673,633, dated May 7, 1901.

Application filed December 31, 1900. Serial No. 41,616. (No model.)

the shell of which is composed of a series of sections and having means within the drumshell for holding the parts together.

Another object is to provide a duplex telescopic bass-drum devoid of external connecting devices and having a door formed in the drum-shell which has unobstructed outward movement, so that access may easily and quickly be had to the interior of the drum without encountering any of the obstacles found in bass-drums in which the connections are outside the drum-shell.

Other objects and advantages will appear from the detailed description which follows.

Figure 1 is a sectional View showing a portion of a bass-drum constructed in accordance with the principles of my invention. Fig. 2 is a sectional view taken approximately on the line a a of Fig. 1. Fig. 3 is aview showing the inside of a portion of the drum-shell. Fig. 4 is an enlarged sectional view showing the bass-drum shell closed together. Fig. 5 is a perspective view showing one end of a door forming a part of the drum-shell.

Referring to the drawings in detail, 1 indicates the hoops, and 2 the end rims, adjustably connected to the said hoops l by the connecting devices 3. The hoops 1' form a portion of the drum-shell and are lined with sections of felt 4, the purpose of which is to avoid jarring by percussion and also to avoid injury to that portion of the drum-shell which operates within the said hoops 1. No connecting-rods or other similar devices are used outside the drum-shell to connect the hoops 1 to each other, and the said connecting devices which I use are located within the drum-shell, which forms one of the essential features of my invention.

The central portion 5 of the drum-shell is slightly smaller in diameter than the hoops l and is designed to operate Within the said hoops and to form close connection therewith. The portion 5 of the drum-shell may be of any desired length, and attached to each end thereof is a rim 6, the same operating within the hoops 1 and bearing close against the sections of felt 4:,carried by the said hoops.

7 indicates the inner hoops, one of which is carried at each end of the drum, and secured thereto at suitable intervals are the connecting guide-strips 8, which are provided with longitudinal slots 9. The said strips 8 are approximately of equal length with the hoops 1, and their free ends operate upon the rims 6. The said rims 6 are provided with openings in alinement with the slots 9, and bolts 10 are carried within the said openings and project through the slots 9 and have on their outer ends finger-nuts 11, whereby close connection may be formed between the hoops 1 and the portion 5 of the drum-shell. At one side of the central portion 5 of the drum-shell is a door 12, which is prevented from inward movement by the rims 6. At one endof the door 12 are the inwardly-extending hooks 13, which are adapted to engage against the inner side of the portion 5 and which operate in notches formed in the rims 6. (See Fig. 2.) The opposite end of the door 12 is held in a closed position by means of a slide-bolt 14 of any known construction and which is carried by the part 5 and engages the end of the door when it is closed. The said slidebolt 14 is flush with the outer surface of the central portion 5 of the drum-shell, so that the hoops 1' may move over it without obstruction. To open the door, the bolt 14 is operated to release the end of the door held thereby, after which the door may be moved outwardly without encountering any obstructions, such as connecting-rods, which are usually found in drums of this class. Thus it is seen that access may quickly be had to the interior of the drum whenever it is desired to place articles therein or remove them therefrom.

In lengthening or shortening the drum the door 12 is opened, as described, and the finger-nuts 11 are operated to release the connecting-strips 8, afterwhich the drum may be shortened, the finger-nuts being left loose so long as the drum is in its shorter connection. Suflficient friction is provided by the fingernuts 11 to retain the parts in whatever position they are placed, and the finger-nuts are only tightened after the drum is again length ened, when the door 12 may be opened andv access had to the nuts to operate them in order to hold the parts in the position desired.

The sections 4 of felt avoid marringor scratching the surface of the inner portion of the drum-shell and assist in forming close connection between the different parts. said sections also avoid any jarring of the different parts, which might occur were the different sections of the drum-shell directly against each other without, any intervening substance to receive and counteract the jar.

The drum-shell may be made in one section, if desired, and the door 12 be located in the side of the drum-shell, it being understood that in this case there are no connecting-rods to obstruct the movement of the door.

I claim- 1. A bass-drum having a shell composed of a series of sections, and means within the drum for holding said sections together, substantially as specified.

2. A telescopic bass-drum devoid of external connections across the central part of the drum-shell and having a door formed in the drum-shell which has unobstructed outward movement, substantially, as specified.

. A telescopic bass-drum having a drumshell composed of a series of sections, a door formed in said drum-shell, and means within the drum for holding the different sections together, substantially as specified.

4. A telescopic bass-drum, consisting of a drum-shell formed with a series of sections,

adoor formed in one of said sections, and means for retaining said door in position, substantially as specified.

5. A telescopic bass-drum having a drumshell composed of a seriesof sections, a door formed in one of said sections, means for holding said door in position, and means within The .the drum for connecting the parts together, substantially as specified.

tion 5 adapted to operate within the said hoops 1, and means within the drum-shell for retaining the said parts together, substantially as specified.

8. A telescopic bass-drum, having a drumshell formed with the hoops 1, a central portion 5, a door formed in said central portion, means foreh olding the door in position, and means carried by the hoops 1 within the drum for holding the different parts of the drum-.

shell together, substantially as specified.

9. A bass-drum having a drum-shell, com-- posed of a series of sections and devoid of external connections across the same, a door formed in the drum-shell, and means for holding it in position. I

10. A bass-drum having a drum-shell composed of a series of sections and connecting devices located within the drum-shell for'holding the sections of the drum-shell together.

11. A bass-drum having a drum-shell composed of a'series of sections and devoid of external connections across the same, a rim at each end, connecting devices for holding said rims in position, and a door formed in the drum-shell which has unobstructed outward movement, substantially as specified.

12. A bass-drum having a drum-shell composed of a number of sections, a rim at each end of said drum-shell and connected thereto, and connecting devices within the drumshell for holding the sections thereof together.

In testimony whereof I affix my signature in presence of two witnesses.

EMILE BOULANGER.

Witnesses:

ALFRED A. EIcKs, JOHN G. HIGDON. 

